2024/11/20 by Magnus R. Lykkegaard, Anders Enevold Dahl, Lykkegaard, Magnus R. +9 · 1 citation
Engineering · Physics and Astronomy · #Advanced Optical Imaging Technologies #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Photonic and Optical Devices #Photorefractive and Nonlinear Optics #Superconductivity (cond-mat.supr-con)
paper · pdf · doi:10.48550/arxiv.2411.13355
openalex publication_date 2024/11/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In optical diffraction, the phase difference between sources in a grating or multi-slit mask is determined by the angle to the imaging screen, yielding the familiar multi-lobed diffraction image. Here, we realize a similar phenomenon in a superconductor-semiconductor hybrid circuit configured to allow Andreev scattering from multiple parallel scatterers. Phase differences between scatterers are set by tapping off of a remote superconducting meander. We investigate arrays with two, three, four, and ten Andreev scatterers, examining local and nonlocal diffraction patterns, finding good agreement with a theory of multiple Andreev scattering, not to be confused with multiple Andreev reflection. Adding current-carrying taps to the meander allows individual phase control.